Some fiber causes excess gas. SmartFiber won’t.

Almost all types of soluble fiber can ferment in your digestive system and cause excess gas. And if you’re taking a fermentable fiber supplement like psyllium to improve regularity, you could actually be making your digestive system even more sensitive.

Citrucel with SmartFiber is proven to help restore and maintain regularity, and it’s also the only fiber that won’t ferment, to cause excess gas*. And only Citrucel has SmartFiber.